We only sell puppies we never sell our adults and every Blue Nose pitbull puppy for sale has been exposed to humans and as much of the natural environment as possible. Stil any puppy can be very emotional. Humans may notice some irrational behavior, like stubbornness or a difficulty listening. That is a good signal for how your dog is feeling. Try to resist the urge to be stern, and instead respond with compassion. Just like a human puppy can be upset by words or actions. You can avoid the canine silent treatment by always giving your dog the respect it deserves.